Conduent
Ransomware attack on government contractor; at least 25 million people affected
Healthcare Data Breaches (355854 indexed)
Mexican Government (9 agencies)
Millions of records stolen via exploitation of Claude Code and ChatGPT between Dec 2025-Feb 2026
TriZetto
Healthcare tech breach affecting more than 3 million Americans through software vulnerability
Conduent
Ransomware attack on government contractor exposed 25+ million records from multiple data sources
University of Pennsylvania
ShinyHunters released confidential files containing years of donor activity records
Mexican Government
Hacker exploited AI tools to breach 9 federal agencies, stole millions of records Dec 2025-Feb 2026
Ransomware attack brought down computer network, causing surgeries to be canceled and
Ransomware attack brought down computer network, causing surgeries to be canceled and clinics closed
Ransomware attack
Ransomware attack exposed Multiethnic Cohort Study data including driver license numbers and voter registration
Mexican Government Agencies
9 federal agencies compromised via AI tools (Claude Code, ChatGPT), millions of records stolen
TriZetto
Healthcare software breach from 2024 affected more than 3 million Americans
Massive Credential Compilation
149 million passwords exposed including 48 million Gmail accounts publicly exposed
University of Pennsylvania
ShinyHunters leaked confidential files including donor records and GSE internal documents
Ransomware attack disrupted patient records access and clinic operations
Ransomware attack disrupted patient records access and clinic operations
KT Corporation
Customer data breach; South Korea fined telco $39 million for personal information exposure
Canada Goose
ShinyHunters leaked 600,000+ customer records via third-party payment processor breach.
Mexican Government
Hacker exploited AI tools to breach 9 federal government agencies between Dec 2025-Feb 2026, stole millions of records
Ransomware attack brought down computer network; surgeries canceled and clinics closed
Ransomware attack brought down computer network; surgeries canceled and clinics closed
Anthem
Data breach impacting some Anthem members; contained by Conduent with no evidence of misuse
University of Pennsylvania
ShinyHunters leaked confidential files including donor records and antisemitism documents
Mexican Government
Hacker exploited AI tools to breach 9 federal government agencies between Dec 2025-Feb 2026
Credential database (massive leak)
149 million stolen passwords exposed publicly, including 48 million Gmail accounts
Ransomware attack brought down computer network, canceled surgeries and closed clinics
Ransomware attack brought down computer network, canceled surgeries and closed clinics
Ransomware attack brought down computer network; surgeries canceled and clinics closed
Ransomware attack brought down computer network; surgeries canceled and clinics closed
Mexican Government Agencies
Nine federal agencies compromised by hacker exploiting Claude Code and OpenAI platforms